Flat lay of Semibold Royal Puffin yellow Merino wool socks, front and back view.
Back view of yellow Royal Puffin socks on a model, showing the puffin character and arch support.
Front view of yellow Royal Puffin hiking socks on a model, bright and energetic design.
Side view of yellow Royal Puffin socks on a model, highlighting the targeted lateral toe cushion.
Yellow Royal Puffin socks on a foot form, displaying the side profile and puffin design.
Detailed flat lay of Royal Puffin yellow socks highlighting the inner arch spine for extra stability.
Flat lay view of the lateral side of yellow Royal Puffin socks, showing the outer toe cushioning.

Semibold Royal Puffin Merino Wool Hiking Crew Socks

Temperature-regulating merino wool socks for versatile outdoor performance.
$175.00
Size
15% Off First Order · Code: FIRST15OFF
True to size. If you're between sizes, size up.
Free shipping $49+
30-day easy returns
Comfort guarantee
BEST FOR
Hiking & Outdoor
Running
Everyday
CUSHION
Medium Cushion Medium Cushion
FIT
FEEL
WHY YOU’LL LOVE THIS

Wear a symbol of nature's resilience. Inspired by the protected Loyal Puffin, these socks are a reminder of our connection to the wild. Featuring premium Achilles protection and Merino wool's natural climate control, they are engineered to support you on the longest journeys to the highest peaks.
PRODUCT DETAILS

Material Benefits

  • Thermal Regulation: Adapts to changing temperatures
  • Sweat Control: Keeps feet dry all day
  • Odor Resistance: Helps reduce odor buildup
  • Soft Feel: Comfortable, itch-free wear
  • Breathable Warmth: Provides warmth without bulk
  • All-Day Wear: Supports everyday activity

Key Features

Dual-Side Forefoot Cushioning
Reduces friction during quick direction changes
Breathable Instep Mesh
Keeps feet cool and dry during movement
Anatomical fit
Designed to match your natural foot shape
Hand-Finished Seamless Toe
Minimizes friction for a smoother feel
Arch Spine
Reinforces natural arch support
Target Cushion
Absorbs impact in high-pressure areas
Midfoot Hugging Ring
Holds your foot in place for stability
Breathable Toe Ventilation
Reduces moisture between toes
Achilles Comfort Padding
Prevents rubbing at the heel collar
Signature Smile
A playful touch that celebrates every step
MATERIALS & CARE

75% Merino wool, 22% Nylon, 3% Lycra

Machine wash cold
Turn inside out
Air dry
Tumble dry low
No bleach / softener
Do not iron
SHIPPING & RETURNS

Free Shipping Over $49 + 30-day Easy Returns

Shipping & Delivery Details
Return & Exchange Details
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ADULT SIZING

True to size. If you're between sizes, size up.

SOCK SIZE
S/M
M/L
ONE SIZE
US
W5–9 / M3–7
W9½–12½ / M½–13
W5–12½ / M3–13
EU
36-40
41-46
36-46
UK
3-7
8-12
3-12
FR
36-38
38-40
36-40
IT
40-42
42-44
40-44
JP
7-9
9-11
7-11
KR
55-56
66-77
55-77
AU
8-10
10-12
8-12
DE
34-36
36-38
34-38
DK
34-36
36-38
34-38

 FOOT MEASUREMENTS
S/M
M/L
IN
8.5-10
10-11
CM
22-25.5
25.5-28

TOE SOCKS SIZING

SOCK SIZE
 ONE SIZE
US
W5–9 / M3.5–7.5
EU
35–40
UK
3-7
FR
35-38
IT
39–42
JP
22-25.5
KR
220–255
AU
5–9
DE
34-38
DK
34-38

BABY SIZING

AGE 
FOOT LENGTH
EU SHOE SIZE
US SHOE SIZE
6 months -3 Years
4.3–5.1 in / 11-13 cm
16-21
1.5-6

DESIGN STORY

Loyal Puffin: Faithful Through Every Season.

Puffins may wobble on land, but when it comes to love, they never falter. If you are drawn to Loyal Puffin, you value true connection and stay devoted to your passions. You love steadily, with a loyalty that is both rare and beautiful.

Long-Distance Armor.

Enhanced target cushioning in the sole and Achilles area minimizes impact and prevents boot-rub during multi-day treks.

Locked-In Feel.

The midfoot hugging ring prevents any internal sliding, ensuring your comfort remains consistent from start to finish.

Core Stability.

Our signature Arch Spine technology supports the natural arch of your foot, improving your endurance and reducing fatigue.

FAQ

What activities are these socks best for?

Semibold Merino socks are designed for an active lifestyle. They excel in hiking, trekking, skiing, and running, but their sleek, non-bulky design makes them equally perfect for office wear and daily commuting.

Do Merino wool socks prevent foot odor?

Absolutely. Merino wool is naturally antimicrobial, meaning it inhibits the growth of odor-causing bacteria. This allows you to stay fresh during long hikes or intense travel days without the worry of unpleasant smells.

Are Merino wool socks warm enough for winter?

Merino wool is world-class for thermal insulation. The fibers have a natural crimp that traps dead air, creating a barrier that retains body heat while remaining breathable, keeping your toes cozy in freezing conditions.

Can I use them for running or fitness training?

Yes. The high-velocity cooling and rapid-dry properties of our Merino blend make them an excellent choice for running and gym sessions, providing cushioning and support without overheating.

Do Merino wool socks feel rough or stiff?

Quite the opposite. Thanks to our selection of premium Australian yarn and specialized knitting techniques, our socks have a luxurious, plush feel that is remarkably flexible.

How should I wash and care for my Merino wool socks?

To preserve the fiber integrity, machine wash on a cold, gentle cycle with similar colors. We recommend air drying or tumble drying on low heat. Avoid bleach and fabric softeners to keep the natural performance features intact.